could you release the code to extract optical flow?

[hjeun]

do I need to normalize RGB images to [0,1] from [0,255] before calculate optical flow? I will follow the code here. https://github.com/opencv/opencv/blob/master/samples/gpu/optical_flow.cpp And 'd_flow' is only output of TVL1. how to split dx_flow and dy_flow?

[joaoluiscarreira]

Hi,

from the person who wrapped TVL-1 at google: (...) "we truncate large motions at +/- 20 pixels along each dimension and then quantize values to 256 buckets using a linear map from [-20, 20] to [0, 255]."

[jahab]

convert_to_flow.ipynb.zip Hi, this is the .ipynb file to extract the flows from the images. This file extract images from videos and then convert frames to optical flow files.